== sanity test 248c: verify whole file read behavior ===== 05:38:59 (1768559939)
llite.lustre-ffff8fe291325000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff8fe291325000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 10.0139 seconds
llite.lustre-ffff8fe291325000.read_ahead_stats=
snapshot_time             1768559951.241833409 secs.nsecs
start_time                1768559940.634159019 secs.nsecs
elapsed_time              10.607674390 secs.nsecs
hits                      16382 samples [pages]
misses                    2 samples [pages]
zero_size_window          1 samples [pages]
failed_to_fast_read       3 samples [pages]
readahead_pages           1 samples [pages] 16382 16382 16382
llite.lustre-ffff8fe291325000.read_ahead_stats=clear
llite.lustre-ffff8fe291325000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 9.49537 seconds
llite.lustre-ffff8fe291325000.read_ahead_stats=
snapshot_time             1768559962.432331612 secs.nsecs
start_time                1768559951.258663866 secs.nsecs
elapsed_time              11.173667746 secs.nsecs
hits                      16382 samples [pages]
misses                    2 samples [pages]
zero_size_window          1 samples [pages]
failed_to_fast_read       3 samples [pages]
readahead_pages           1 samples [pages] 16382 16382 16382
Test passed on attempt 0
llite.lustre-ffff8fe291325000.max_read_ahead_whole_mb=4